http://lod.bco-dmo.org/id/dataset/542953
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2014-12-18
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Radiocarbon dates on calcite and organic material (gorgonin) in bamboo coral skeletons Keratoisis (Bamboo Coral Boron Isotopes project)
2014-12-17
publication
2014-12-17
revision
BCO-DMO Linked Data URI
2014-12-17
creation
http://lod.bco-dmo.org/id/dataset/542953
Dr Baerbel Hoenisch
Lamont-Doherty Earth Observatory
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Hoenisch, B. (2014) Radiocarbon dates on calcite and organic material (gorgonin) in bamboo coral skeletons Keratoisis (Bamboo Coral Boron Isotopes project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 17 December 2014) Version Date 2014-12-17 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/542953 [access date]
Keratoisis Radiocarbon Dates Dataset Description: <p>Radiocarbon dates on calcite and organic material (gorgonin) in bamboo coral skeletons</p>
<p><strong>Related References:</strong><br />
Farmer, J.R., Hönisch, B., Robinson, L.F. and Hill, T.M. (2015) Effects of seawater-pH and biomineralization on the boron isotopic composition of deep-sea bamboo corals. In revision, <em>Geochim. Cosmochim. Acta</em>.</p>
<p>Sherwood, O.A., Edinger, E.N., Guilderson, T.P., Ghaleb, B., Risk, M.J. and Scott, D.B. (2008). Late Holocene radiocarbon variability in Northwest Atlantic slope waters. <em>Earth Planet. Sci. Lett.</em> 275, 146-153, doi:10.1016/j.epsl.2008.08.019.</p> Methods and Sampling: <p><strong>Sampling and Analytical Methodology:</strong><br />
All radiocarbon dates were obtained at the National Ocean Sciences Accelerator Mass Spectrometry facility (NOSAMS). Prior to sample submission, 3 to 5 mg of powdered calcite was cleaned of organic material following the oxidative procedure given in Farmer et al. (2015). Clean calcite powders were submitted to NOSAMS and leached with 200 µL of 0.1N HCl under sonication immediately prior to hydrolysis to remove any adsorbed modern CO<sub>2</sub>. Approximately 10-20% of the sample mass was removed by the HCl leach. Gorgonin samples were prepared following Sherwood et al. (2008): decalcified nodes were separated with tweezers and a scalpel into individual gorgonin units, comprising 3 to &gt;10 gorgonin layers where distinguishable. Approximately 2 to 3 mg of gorgonin was subsampled from larger units, soaked in 5% HCl for 48 hours to remove any residual carbonate, rinsed in deionized water and dried prior to submission to NOSAMS.</p>
<p>Full methodology, equations, and discussion of instrumental precision are available from the NOSAMS website: <a href="%22"><u>http://www.whoi.edu/nosams/</u></a></p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1041133 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1041133
completed
Dr Baerbel Hoenisch
Lamont-Doherty Earth Observatory
845-365-8828
229 Comer 61 Route 9W- Box 1000
Palisades
NY
10964
USA
hoenisch@ldeo.columbia.edu
pointOfContact
asNeeded
Dataset Version: 17 December 2014
Unknown
Coral
Lat
Lon
Sample
Type
Depth
Depth_Error
Accession_Number
Fraction_Modern
Fm_Err
Conventional_14C_Age
Age_Err_14C
Delta13C
AMS - National Ocean Sciences Accelerator Mass Spectrometry facility
theme
None, User defined
sample identification
latitude
longitude
sample type
length
standard error
accession number
No BCO-DMO term
carbon-14 age dating
carbon-14 age dating error
Carbon 13 to Carbon 12 ratio of TCO2
featureType
BCO-DMO Standard Parameters
Accelerator Mass Spectrometer
instrument
BCO-DMO Standard Instruments
BambooCoral_Hoenisch
service
Deployment Activity
Global
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Calibration and application of the boron isotope seawater-pH indicator in deep-water corals
https://osprey.bco-dmo.org/project/542303
Calibration and application of the boron isotope seawater-pH indicator in deep-water corals
<p><em>Description from NSF award abstract:</em><br />
Anthropogenic CO2 enters the ocean in the high latitudes, from where it spreads into the deep ocean interior. Because carbonate ion saturation at greater water depth is generally reduced in the deep ocean, deep-sea corals may be particularly vulnerable to ocean acidification. Efforts are needed to determine the effects of changing seawater chemistry on these ecosystems, and in particular reconstructions of past pH-variations experienced by these corals may help to implement long-term management plans for deep-sea coral reefs. This project will provide new insight into the effect of changing seawater carbonate chemistry and anthropogenic ocean acidification on deep-sea coral reefs. The researchers will calibrate the boron isotope and B/Ca paleo-pH proxies in several species of modern and cultured deep-sea corals. The resulting proxy calibrations will be used to interpret the boron isotope composition of live collected and fossil deep-sea corals with regard to past ocean pH changes. Live collected corals from the North Atlantic and Southern Ocean will provide ultra-high resolution temporal records of anthropogenic CO2 invasion at intermediate depths. Radiometrically dated corals from the same locations will be used to document pH changes in the deep ocean over the last deglaciation. Comparison of paleo-pH with already established changes in coral species composition will allow interpretation of coral sensitivity to ocean acidification. The project will also improve paleo-pH reconstructions by cross- calibrating the principal techniques of boron isotope analysis.</p>
<p><strong>Related Reference:</strong><br />
<a href="http://dmoserv3.whoi.edu/data_docs/BambooCoral/Hoenisch_ocean_acidification_2010.pdf">Hoenisch_ocean_acidification_2010</a></p>
Bamboo Coral Boron Isotopes
largerWorkCitation
project
eng; USA
oceans
Global
2014-12-17
Global sample locations
0
BCO-DMO catalogue of parameters from Radiocarbon dates on calcite and organic material (gorgonin) in bamboo coral skeletons Keratoisis (Bamboo Coral Boron Isotopes project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/542972.rdf
Name: Coral
Units: text
Description: <p>Speciman Identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/542973.rdf
Name: Lat
Units: decimal degrees
Description: <p>Sample Latitude Location (South is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/542974.rdf
Name: Lon
Units: decimal degrees
Description: <p>Sample Longitude Location (West is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/542975.rdf
Name: Sample
Units: text
Description: <p>Sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/542976.rdf
Name: Type
Units: text
Description: <p>Sample Type</p>
http://lod.bco-dmo.org/id/dataset-parameter/542977.rdf
Name: Depth
Units: mm
Description: <p>Length scale for sample either relative to the outside of the coral (distal surface)</p>
http://lod.bco-dmo.org/id/dataset-parameter/542978.rdf
Name: Depth_Error
Units: mm
Description: <p>Depth Error</p>
http://lod.bco-dmo.org/id/dataset-parameter/542979.rdf
Name: Accession_Number
Units: text
Description: <p>Accession Number</p>
http://lod.bco-dmo.org/id/dataset-parameter/542980.rdf
Name: Fraction_Modern
Units: ‰
Description: <p>Fraction Modern (Fm) = ((14C /12Csample - 14C /12Cblank)/( 14C /12Creference - 14C /12Cblank))* ((1-25/1000)/(1+δ13C/1000))^2</p>
http://lod.bco-dmo.org/id/dataset-parameter/542981.rdf
Name: Fm_Err
Units: ‰
Description: <p>Fraction Modern Error</p>
http://lod.bco-dmo.org/id/dataset-parameter/542982.rdf
Name: Conventional_14C_Age
Units: 14C years
Description: <p>Conventional 14C age (in 14C years before 1950) = -8033*ln(Fm</p>
http://lod.bco-dmo.org/id/dataset-parameter/542983.rdf
Name: Age_Err_14C
Units: 14C years
Description: <p>Conventional 14C age error</p>
http://lod.bco-dmo.org/id/dataset-parameter/542984.rdf
Name: Delta13C
Units: ‰
Description: <p>13C (‰) = (((13C/12Csample)/( 13C/12Cstandard))-1)*1000; The standard is Vienna Pee Dee Belemnite (VPDB)</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
4760
https://datadocs.bco-dmo.org/file/yppz4ZXC05qQMj/BC_14C.csv
BC_14C.csv
Primary data file for dataset ID 542953
download
https://osprey.bco-dmo.org/dataset/542953/data/download
download
onLine
dataset
<p><strong>Sampling and Analytical Methodology:</strong><br />
All radiocarbon dates were obtained at the National Ocean Sciences Accelerator Mass Spectrometry facility (NOSAMS). Prior to sample submission, 3 to 5 mg of powdered calcite was cleaned of organic material following the oxidative procedure given in Farmer et al. (2015). Clean calcite powders were submitted to NOSAMS and leached with 200 µL of 0.1N HCl under sonication immediately prior to hydrolysis to remove any adsorbed modern CO<sub>2</sub>. Approximately 10-20% of the sample mass was removed by the HCl leach. Gorgonin samples were prepared following Sherwood et al. (2008): decalcified nodes were separated with tweezers and a scalpel into individual gorgonin units, comprising 3 to &gt;10 gorgonin layers where distinguishable. Approximately 2 to 3 mg of gorgonin was subsampled from larger units, soaked in 5% HCl for 48 hours to remove any residual carbonate, rinsed in deionized water and dried prior to submission to NOSAMS.</p>
<p>Full methodology, equations, and discussion of instrumental precision are available from the NOSAMS website: <a href="%22"><u>http://www.whoi.edu/nosams/</u></a></p>
Specified by the Principal Investigator(s)
<p><strong>Data Processing: </strong><br />
Fraction Modern (Fm) = ((<sup>14</sup>C /<sup>12</sup>C<sub>sample</sub> - <sup>14</sup>C /<sup>12</sup>C<sub>blank</sub>)/(<sup> 14</sup>C /<sup>12</sup>C<sub>reference</sub> - <sup>14</sup>C /<sup>12</sup>C<sub>blank</sub>))* ((1-25/1000)/(1+<em>δ</em><sup>13</sup>C/1000))^2;</p>
<p>The reference is 95% of the radiocarbon concentration of NBS Oxalic Acid I (in 1950 AD) normalized to <em>δ</em><sup>13</sup>C<sub>VPDB</sub>=-19‰.</p>
<p>Conventional <sup>14</sup>C age (in <sup>14</sup>C years before 1950) = -8033*ln(Fm)</p>
<p><em>δ</em><sup>13</sup>C (‰) = (((<sup>13</sup>C/<sup>12</sup>C<sub>sample</sub>)/(<sup> 13</sup>C/<sup>12</sup>C<sub>standard</sub>))-1)*1000; The standard is Vienna Pee Dee Belemnite (VPDB)</p>
<p>&nbsp;</p>
<p><strong>BCO-DMO Processing Notes</strong><br />
&nbsp;- Generated from original file: "DATASET-14C.xlsx" contributed by Jesse Farmer<br />
&nbsp;- Parameter names edited to conform to BCO-DMO naming convention found at <a href="http://usjgofs.whoi.edu/naming-guidelines.html" target="_blank">Choosing Parameter Name</a><br />
&nbsp;- Lat/Lon sampling locations added from locations dataset to allow plotting in MapServer<br />
&nbsp;- "nd" (no data) added to blank cells</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
AMS - National Ocean Sciences Accelerator Mass Spectrometry facility
AMS - National Ocean Sciences Accelerator Mass Spectrometry facility
PI Supplied Instrument Name: AMS - National Ocean Sciences Accelerator Mass Spectrometry facility PI Supplied Instrument Description:All radiocarbon dates were obtained at the National Ocean Sciences Accelerator Mass Spectrometry facility (NOSAMS).
Full methodology, equations, and discussion of instrumental precision are available from the NOSAMS website: http://www.whoi.edu/nosams/ Instrument Name: Accelerator Mass Spectrometer Instrument Short Name:AMS Instrument Description: An AMS measures "long-lived radionuclides that occur naturally in our environment. AMS uses a particle accelerator in conjunction with ion sources, large magnets, and detectors to separate out interferences and count single atoms in the presence of 1x1015 (a thousand million million) stable atoms, measuring the mass-to-charge ratio of the products of sample molecule disassociation, atom ionization and ion acceleration." AMS permits ultra low-level measurement of compound concentrations and isotope ratios that traditional alpha-spectrometry cannot provide. More from Purdue University: http://www.physics.purdue.edu/primelab/introduction/ams.html Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB17/
Deployment: BambooCoral_Hoenisch
BambooCoral_Hoenisch
shoreside BAMBOO CORAL
synthesis
BambooCoral_Hoenisch
Dr Baerbel Hoenisch
Lamont-Doherty Earth Observatory
shoreside BAMBOO CORAL
synthesis